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Proguard rules needed for PageIterator

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Assessment

Difficulty
2/5
Estimated time
1-3 hours
Newbie friendliness
52/100
Issue type
Bug
Clarity
Clearly specified
Activity status
Stale
Tech stack
android, java

Research direction

Start at com.microsoft.graph.core.tasks.PageIterator, especially extractEntityListFromParsable at PageIterator.java:300, and inspect the library's Android ProGuard configuration. Reproduce the minified DriveItem PageIterator example, then verify that a packaged rule preserves the response method and minified iteration succeeds.

Written by the indexing model from the issue text.

Description

type:enhancement
Describe the bug

On Android with a minified build, an exception occurs with PageIterator over DriveItems. The PageIterator class calls getDeclaredMethod("getValue") on the response class. The response getValue method appears to be removed by the minified build.

Exception:

java.lang.IllegalAccessException: NO_COLLECTION_PROPERTY_ERROR
at com.microsoft.graph.core.tasks.PageIterator.extractEntityListFromParsable(PageIterator.java:300)
at com.microsoft.graph.core.tasks.PageIterator$Builder.build(PageIterator.java:203)
at com.microsoft.graph.core.tasks.PageIterator$Builder.build(PageIterator.java:210)
Expected behavior

Proguard rules provided by the library would include the needed classes/methods for PageIterator to work.

How to reproduce

Code:

var resp = 
        client.drives().byDriveId(driveId).items().byDriveItemId("root").children().get();

var pageIter =
        new PageIterator.Builder<DriveItem, DriveItemCollectionResponse>()
        .client(client)
        .collectionPage(resp)
        .collectionPageFactory(DriveItemCollectionResponse::createFromDiscriminatorValue)
        .processPageItemCallback(item -> {
                                        // use DriveItem item...
                                        return true;
                                    })
        .build();
pageIter.iterate();

SDK Version

6.24.0

Latest version known to work for scenario above?

No response

Known Workarounds

Add Proguard rule: -keep class com.microsoft.graph.models.DriveItemCollectionResponse { *; }

Debug output

No response

Configuration

No response

Other information

No response

Dominant language
Java
Stars
444
Forks
154
Avg merge
18h 28m
Merged PRs (30d)
4

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